Raiders get ex-S.F. cornerback Shawntae Spencer

The Raiders have signed former 49ers cornerback Shawntae Spencer to a one-year deal, a league source confirmed. No financial details were available.

Spencer lost his starting job last season and then was cut last week, but the eight-year veteran has 77 NFL starts. New Raiders defensive coordinator Jason Tarver was on the 49ers’ coaching staff during that time.

It’s unclear if the 6-foot-1 Pittsburgh alum is considered a starter. The Raiders were expected to bring in former Saints cornerback Tracy Porter this week.

The Raiders, who cut starting cornerbacks Stanford Routt and Chris Johnson, signed former Rams cornerback Ron Bartell on Friday.

The Raiders also re-signed Cooper Carlisle, who didn’t miss a snap last season as the starting right guard. He was cut last week as the team dealt with salary-cap issues.